For 3-4 people of my parents' generation, I just call them up once in a while.
Actually, there isn't a lot of an overlap of interests with those of the people I grew up around. I have no interests on sports, celeb culture, etc. And politically, I conform to neither side (although I am not a centrist).
People have said things behind my back and in one particular instance, I have been verbally harassed for not liking the things most people like.
So, I don't bother being "social". I do community service, donate time and money to charities, attend marriages and funerals and such and nod and smile for 1-2 hours. I also mentor 2-3 kids. One is a neighbor, one lives on a different country.
I don't see the point of a "social" media. I just want to be away from most people I know in real life.
I find better solace on anonymous sites like Reddit, HN, or new like-minded people I get to know through interest-based forums.
I do send people pictures of stuff I cook, glasses I buy, etc. tgrough DM.
I also have a private Instagram where I allow about 30 people to follow me.
I would never even think about social media like most people use it.